90 F350 - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 5 (permalink) Old 10-29-2010, 02:23 AM Thread Starter
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90 F350

I know where I can get a 90 F350 Dually cheap. Which motor did they have in them for this year? How much power? Fuel economy? Any and all feedback is welcomed.

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post #2 of 5 (permalink) Old 10-29-2010, 02:27 AM
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It will have a 7.3 IDI in it. If im not mistaken factory HP was around 190 HP, will be more if it was a turboed model. Fuel economy depends on your gear ratio and transmission in the truck. Id say average 15-17 MPG.

The IDI motors are no motors if your wanting a lot of HP, but they are great in so many other ways like torque and simplicity.


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post #3 of 5 (permalink) Old 10-29-2010, 04:08 AM Thread Starter
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What would you say it's worth? It's auto, dually flat bed. not sure of miles or whether its 4x4 or not.

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post #4 of 5 (permalink) Old 10-30-2010, 03:03 AM
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With a 20 YO truck, condition, condition and condition are the three things that matter.

Our '93 gets 20+ MPG, a dually will get a little less because it has more tires on the ground and larger fenders (more drag). The truck was built with a 7.3L IDI and if you keep the addatives in the coolant, they are tough as nails and mostly bullet-proof.

'93 F-250 HD, 7.3L IDI, 5spd - FARM TRUCK
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post #5 of 5 (permalink) Old 11-08-2010, 02:27 AM
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non turbo 7.3s were rated for 180hp, factory turbo's were 190hp.... there isnt much you can do to up the hp on these either, other than the turbo. idis are not speed demons. i put a factory turbo on my 90 and a homemade 3 inch downpipe, which helped quite a bit, but my well used 99 psd would still run circles around it..... idis are easy to work on though.... i was getting about 15mpg with mine, a cc lb 4x4, with leaking return lines, even after putting new ones on, and fuel heater.

-99, early 09/98, f350 lariat crew4X4 dually, gauges, ais intake w/ fender foam, zoodaded, 6.0 tranny and intercooler, 2" shackle level kit, velvet ride shackles, hellwig 1.5" front sway bar, better a/c mod, pmt3, superchips 1705, adrenaline pump, bilsteins, 220k and counting.....
-03 f350 6.0 lariat crew 4x4 long bed, SOLD
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